The International Ombudsman Association (IOA) was officially formed in 2005, following the merger of the University and College Ombuds Association (UCOA) and the Ombudsman Association (TOA). It is the largest international association of professional organizational ombuds, with over 500 members globally. The IOA offers professional training and education programs for practicing ombuds, and works to support and promote the profession through strategic partnerships with government agencies and other professional organizations.